We produce this using a cold process employing enzymes (natural biological catalysts) which break down fish, or fish frames (the part left after the fillet is removed for human consumption) to simpler protein complexes. This process is called Hydrolysis. The only manipulation the product undergoes is grinding and hydrolysis. This process yields a stable, non-odorous, liquid fertilizer that is an easy to use, safe product.

The nitrogen in Neptune’s Harvest fish fertilizer is derived from fish protein in the form of amino acids which when added to soil slowly break down into basic nitrogen compounds. While a percentage of nitrogen becomes soluble due to the nature of the manufacturing process, no inorganic nitrogen has been added.